[Xen-changelog] [xen-unstable] bimodal: pvfb frontend

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1169563646 0
# Node ID b9ffa4b49d9711edba34d490a2263fd909b2acfe
# Parent  ffe52263b430cff6cd31237f5872c71a3622306b
bimodal: pvfb frontend

Create a new node "protocol" in xenstore, add the protocol name it
speaks there.

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxx>
---
 linux-2.6-xen-sparse/drivers/xen/fbfront/xenfb.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletion(-)

diff -r ffe52263b430 -r b9ffa4b49d97 
linux-2.6-xen-sparse/drivers/xen/fbfront/xenfb.c
--- a/linux-2.6-xen-sparse/drivers/xen/fbfront/xenfb.c  Tue Jan 23 14:45:41 
2007 +0000
+++ b/linux-2.6-xen-sparse/drivers/xen/fbfront/xenfb.c  Tue Jan 23 14:47:26 
2007 +0000
@@ -27,6 +27,7 @@
 #include <asm/hypervisor.h>
 #include <xen/evtchn.h>
 #include <xen/interface/io/fbif.h>
+#include <xen/interface/io/protocols.h>
 #include <xen/xenbus.h>
 #include <linux/kthread.h>
 
@@ -479,7 +480,7 @@ static int __devinit xenfb_probe(struct 
                goto error_nomem;
 
        /* set up shared page */
-       info->page = (void *)__get_free_page(GFP_KERNEL);
+       info->page = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
        if (!info->page)
                goto error_nomem;
 
@@ -638,6 +639,10 @@ static int xenfb_connect_backend(struct 
                goto error_xenbus;
        ret = xenbus_printf(xbt, dev->nodename, "event-channel", "%u",
                            irq_to_evtchn_port(info->irq));
+       if (ret)
+               goto error_xenbus;
+       ret = xenbus_printf(xbt, dev->nodename, "protocol", "%s",
+                           XEN_IO_PROTO_ABI_NATIVE);
        if (ret)
                goto error_xenbus;
        ret = xenbus_printf(xbt, dev->nodename, "feature-update", "1");

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